Calvin Klein (born November 19, 1942, The Bronx, New York City, New York, United States) as Richard Klein, is a well-known fashion designer. His name is also a brand name of clothing marketed by his clothing company, which was launched in 1968.

The Calvin Klein company, like many in the fashion industry, is known for its eye-catching advertising. It is noted by many conservative organizations for its use of seemingly-underage models in pseudo-provocative poses.

In addition to clothing, Calvin Klein also gave his name to a range of perfumes, including CK One and CK Be (fragrances for everyone, regardless of gender), now owned by Unilever.